Ok, so I have a sewing machine at my house that my mother has given me/let me borrow (I’m not exactly sure, she may come to me one day and steal it away). I am finally starting to get the urge to learn how to use it. It must be all of this button sewing. So I am starting by actually reading (*GASP*) the manual. The last time I tried to use it unsupervised, the thread just bunched up in the bottom (the bobbin! WOOT!). But I was going on memory, and it wasn’t doing well at the time I guess. Of course, I still don’t get all of the terminology. And I don’t actually have any fabric to sew. But, I do have old shirts and stuff that I can play with. Maybe I’ll sew designs on it.
number 1 reason for bunching up is it usually not threaded right, could also be bent needle. make sure thread is in take up lever ( read book). make sure bobbin is threaded right also. diagram to thread i believe is in the door on left of machine. also read book to see if machine needs oiling and where to put it. good luck.
Spray some WD40 on it!